24896860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 53887680

約数和(自身を除く): 28990820

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 197, 284, 355, 356, 394, 445, 710, 788, 890, 985, 1420, 1780, 1970, 3940, 6319, 12638, 13987, 17533, 25276, 27974, 31595, 35066, 55948, 63190, 69935, 70132, 87665, 126380, 139870, 175330, 279740, 350660, 1244843, 2489686, 4979372, 6224215, 12448430, 24896860]

約数ペア:

[(1, 24896860), (2, 12448430), (4, 6224215), (5, 4979372), (10, 2489686), (20, 1244843), (71, 350660), (89, 279740), (142, 175330), (178, 139870), (197, 126380), (284, 87665), (355, 70132), (356, 69935), (394, 63190), (445, 55948), (710, 35066), (788, 31595), (890, 27974), (985, 25276), (1420, 17533), (1780, 13987), (1970, 12638), (3940, 6319)]